Unverified82% confidenceDecision RuleTime unknown
孕期消肿及静脉回流用途的腿部抬高枕，最高点高度20-25cm、倾斜角度15-20度即可，超过30度反而压迫膝盖后侧腘窝血管、影响回流效果
1
Sources
82%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified护膝尺码看的是髌骨上方15cm处大腿围而非膝盖围，因为主要加压区在髌骨上方股四头肌附着处，量错部位会导致过松滑落或过紧勒血管77% similarUnverified高度可调范围应覆盖25-45cm，低于25cm坐姿蜷缩，高于45cm易造成大腿后侧血液循环受阻，建议选3档以上分段调节而非无级下垂式76% similarUnverified腰靠最凸处厚度建议在8-12cm，弧度对应腰椎前凸约20-40度；厚度＜6cm支撑不足形同虚设，＞13cm会把身体前推导致坐姿前倾反而累75% similarUnverified尺码测量应以髌骨中心上方15cm的大腿围为准，而非膝盖围，套筒式护膝过紧会阻碍腘窝静脉回流导致小腿麻木74% similar
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